Caller info should include the module

[emschwartz]

As discussed in https://github.com/orgs/autometrics-dev/discussions/42

• Spec Replace caller label with caller.function and caller.module #74
• VS Code extension Replace the caller label with caller.function and caller.module vscode-autometrics#58
• Java Replace caller label with caller.function and caller.module jamsiedaly/autometricsj#6
• Typescript Replace caller label with caller.function and caller.module autometrics-ts#89
• C# Replace caller label with caller.function and caller.module autometrics-cs#14
• Rust Replace caller label with caller.function and caller.module autometrics-rs#127
• Python Replace caller label with caller.function and caller.module autometrics-py#62
• Go Replace caller label with caller.function and caller.module autometrics-go#62

[actualwitch]

update on python: i made some changes to how caller is determined to align it better with spec, and after that adding module would be very easy

[flenter]

We should also update "explorer" (as provided by the Autometrics CLI) as well as the vscode extension.